Glad you're enjoying the game... Ctrl-k will suicide your player if you are falling endlessly, then you can just hit spacebar to respawn. Also, sometimes if you get killed in the shuttle you won't dismount and may have trouble biting spacebar to respawn. If this happens just dismount, yes you can still dismount with ctrl-x after dying, then once you're out falling in space dead hitting the spacebar will respawn you again.
There are a few Easter Eggs in the game too. Fly through the fighter ring to activate the dogfight mission, and if you can kill the drone a secret mission ring will open up... Fly through that for a neat surprise. If you get through the secret mission another surprise happens.
Anyhow, keep playing and posting, I like the feedback.